* The Engine Itself: A used Hemi engine can range from $3,000 to $10,000+ depending on the year, mileage, and condition. A brand-new crate Hemi will be considerably more expensive – easily $15,000 or more.
* Transmission: The Challenger SE's original transmission likely won't be compatible with a Hemi. You'll need a new or rebuilt transmission capable of handling the Hemi's power. This could cost anywhere from $2,000 to $8,000 or more, depending on the choice (manual vs. automatic, new vs. used, etc.).
* Installation Labor: This is a major expense. A professional mechanic will charge several thousand dollars for the engine swap, potentially $5,000-$10,000+ depending on the shop's rates and the complexity of the installation. This includes removing the old engine, installing the new one, wiring, plumbing, and all necessary adjustments.
* Parts and Accessories: You'll need various parts to make the Hemi fit and function properly in the Challenger SE. This includes things like engine mounts, wiring harnesses, potentially new axles or driveshafts, computer programming (ECU tuning), and possibly upgraded cooling systems or exhaust. These parts could easily add another $2,000-$5,000 to the total.
* Unexpected Costs: During the installation, unexpected problems might arise (e.g., damaged parts requiring replacement). Always budget for unforeseen expenses.
Total Estimated Cost: Based on the above, a reasonable estimate for a Hemi swap into a Dodge Challenger SE would range from $12,000 to $30,000 or more. The higher end of this range is easily achievable if you choose a new crate engine, a high-performance transmission, and encounter unexpected complications. Using used parts and performing some of the labor yourself could lower the cost, but it would still be a substantial investment.
Recommendation: Get several quotes from reputable mechanics specializing in engine swaps before committing to the project. Clearly outline exactly what you want done and get everything in writing. This will help you understand the total cost and avoid unpleasant surprises later on.
